BroadcastChannel

A BroadcastChannel that works in old browsers, new browsers, WebWorkers and NodeJs and Deno
+ LeaderElection over the channels

A BroadcastChannel that allows you to send data between different browser-tabs or nodejs-processes. And a LeaderElection over the channels.

Read the full documentation on github

Sponsored by

The JavaScript Database

CHANGELOG

X.X.X (comming soon)

7.0.0 (27 November 2023)

• CHANGE do not emit messages that have been existed before the channel was created.

6.0.0 (30 October 2023)

• ADD support for the Deno runtime

5.5.1 (23 October 2023)

• REPLACE new Date().getTime() with Date.now() which is faster

5.5.0 (17 October 2023)

• Add sideEffects: false

  5.4.0 (10 October 2023)

• FIX import of p-queue throws is not a constructor

5.3.0 (18 August 2023)

https://github.com/pubkey/broadcast-channel/pull/1243

5.2.0 (11 August 2023)

https://github.com/pubkey/broadcast-channel/pull/1237

5.1.0 (25 April 2023)

• REFACTOR check for native method #1157

5.0.1 (23 March 2023)

• FIX hasLeader() is mixing up states

5.0.0 (23 March 2023)

• Use Web Locks API for leader election if possible.
• LeaderElector.hasLeader is now a function that returns a Promise<boolean>.

4.20.1 (6 January 2023)

• FIX exports order

4.20.0 (6 January 2023)

• FIX typings did not work with "moduleResolution": "NodeNext"

4.19.0 (28 December 2022)

• Updated dependencies

4.18.1 (31 October 2022)

• Updated dependencies

4.18.0 (6 October 2022)

• FIX fix(indexedDB): Can't start a transaction on a closed database #1042 nabigraphics

4.17.0 (13 September 2022)

• REMOVE the isNode utility function so that we do not access the process variable in browsers.

4.16.0 (13 September 2022)

• Rerelase because npm got stuck

  4.15.0 (13 September 2022)

• Remove microtime dependency https://github.com/pubkey/broadcast-channel/pull/1036 jaredperreault-okta

4.14.0 (18 Juli June 2022)

• Updated dependencies.

4.13.0 (1 June 2022)

• FIX ES module for Node.js #972

4.12.0 (25 May 2022)

• FIX ES module for Node.js Thanks denysoblohin-okta

4.11.0 (12 April 2022)

• Replaced nano-time with microtime.
• Improve IndexedDB method performance.

4.10.0 (3 February 2022)

• Improve error message when calling postMessage to a closed channel.

4.9.0 (23 December 2021)

Bugfixes:

• When listening to messages directly, responses that where send directly after addEventListener() where missing because of inaccurate JavaScript timing.

4.8.0 (15 December 2021)

Changes:

• Better determine the correct responseTime to use to make it less likely to elect duplicate leaders.

4.7.1 (13 December 2021)

Bugfixes:

• Remove useless log at leader election fallback interval.

4.7.0 (3 December 2021)

Bugfixes:

• Prevent EMFILE, too many open files error when writing many messages at once.

4.6.0 (2 December 2021)

Other:

• Added broadcastChannel.id() for debugging

Bugfixes:

• Refactor applyOnce() queue to ensure we do not run more often then needed.

4.5.0 (5 November 2021)

Bugfixes:

• Running applyOnce() in a loop must not fully block the JavaScript process.

4.4.0 (2 November 2021)

Other:

• Replaced js-sha with node's crypto module.

4.3.1 (30 October 2021)

Bugfixes:

• Fixed broken promise rejection.

4.3.0 (30 October 2021)

Features:

• Added LeaderElector.hasLeader
• Added LeaderElector.broadcastChannel

4.2.0 (3 August 2021)

Bugfixes:

• Fixed Webpack 5 Relative Import Support. Thanks catrielmuller

  4.1.0 (2 August 2021)

Bugfixes:

• Fixed various problems with the module loading. Thanks benmccann and chbdetta

4.0.0 (15 July 2021)

Other:

• Changed entrypoints and method-choosing #679. Thanks benmccann

3.7.0 (13 June 2021)

Other:

• Moved ObliviousSet into its own npm module

3.6.0 (19 May 2021)

Features:

• Added BroadcastChannel.isClosed #544

Other:

• Updated dependencies to work with newer node versions

3.5.3 (11 March 2021)

Bugfixes:

• Fixed broken typings

3.5.2 (11 March 2021)

Bugfixes:

• BroadcastChannel.close() waits for all ongoing message sending to be finished before resolving.

3.5.0 (11 March 2021)

Features:

• Added LeaderElector.onduplicate

3.4.0 (24 January 2021)

Bugfixes:

• fix cursor error in Safari #420

3.3.0 (20 October 2020)

Bugfixes:

• new BroadcastChannel().close() should not resolve before all cleanup is done #348